Jacket removing plug



Dec. 4, 1945. M. GLASSNER 2,390,298

JACKET REMOVING PLUG ori inal Filed April 14, 1943' Glaqqzt Patented Dec. 4, 1945 vOFFICE JACKET REMOVING PLUG Mitchel Glassner, Baltimore, Md., assignor to Maryland Baking Company, Inc., Baltimore, Md.; a corporation of -Maryland V Original application April 14, 1943, Serial No. 483,075. Divided and this application August 22, 1944, Serial No. 550,648

8 Claims. (01. ear-c4) My invention relates generally to machines for placing jackets or wrappers on ice cream cones and the like. Such jackets are usually made of paper in the form of a truncated cone and envelope only the stem of the cone below the bowl, or below the nesting ring, when such ring is present on the cone.

The present invention involves the jacket removing plug employed in the machine disclosed in my application, filed April 14, 1943, Serial Number 483,075, of which application the present application is a division.

Generically the present invention has for an object to provide a plug for insertion into the innermost one of a stack of nested jackets, the plug havin means operable by suction for causing said jacket to adhere to the plug while the plug is being pulled out and including mechanical means to prevent the jacket being stripped from the plug while the plug engaged jacket is being separated from the others in the stack.

Others objects will in part be obvious and in part be pointed out hereinafter.

To the attainment of the aforesaid objects and ends the invention still further resides in the novel details of construction, combination and arrangement of parts, all of which will be first fully described in the following detailed description and then be particularly pointed out in the appended claims, reference bein had to the accompanying drawing, in which:

Fig. 1 is a detail vertical section showing how the jacket transfer mechanism takes on a jacket in the jacket magazine.

Fig. 2 is a cross section on the line 2-2 of Fig. 1.

Fig. 3 is a side elevation of one of the frustoconical (truncated cone) jacket removing plugs.

Fig. 4 is a top plan view of the same.

Fig. 5 is a bottom plan view of the same.

Fig. 6 is a central longitudinal section of a modified plug.

In the drawing in which like numerals and letters of reference indicate like parts in all the figures, the same reference numbers are used as in my patent application Serial Number 483,075 aforesaid.

As shown in Fig. l a jacket chute I01 is mounted on at least one cross bar I08 attached to fixed angle iron I06. The chut I01 is open along one side as at I56 to permit passage of a. spring finger I42 that is mounted on a bracket I4I secured to the chute in any desired way.

I30 indicates a plug carrier which is coupled to the plug I29 by a threaded nipple I43. The

carrier I30 is hollow and in use is connected with a suitable controlled source of suction by means of which a partial vacuum may be produced in the ducts I34 of the plug as fully brought out in my application Serial Number 483,075 aforesaid. The carrier I30 is moved along a line, indicated by the double headed arrow in Fig. 1, so as to insert and withdraw the plug, by mechanism disclosed in my application aforesaid.

Each plug is of truncated cone or frusto-conical form and is designed to fit loosely within the jackets w. At the side of the plug which faces the longitudinal slot I56 in the chute I01, the plug has a deep groove I32 to receive a finger not shown, While at the opposite side the plug has a shallow groove I 33. The plug has a bore with a lateral duct or port I34 that terminates at the groove I33. Each plug I29 is provided with a pin point I35 (Figs. 1 and 3) or saw teeth I35 (Fig. 6) projecting into groove I33 so as to provide the plug with a rough place in the groove I33. When a jacket is sucked into groove I33 (Figs. 1 and 2) it will be caught by the pin I35 or teeth I35 so that it cannot slip off the plug as the plug is being withdrawn from the chute I01. Each chute I01 has a slot through which a finger I39 projects into the chute: to hold the stack of jackets w from dropping down through the chute I01. The finger I39 is secured (preferably adjustably) at I40 to a bracket I38 that is suitably fastened to the chute I01. Another bracket I4I, secured to the chute I01, carries a spring finger I42 which presses the stack of jackets toward the side of the chute which carries the finger I39.

Operation When the carrier I30 is in the position shown in Fig. 1 the suction pump is turned on and the innermost jacket w is sucked to the plug I29, the jacket being in part deflected into groove I33 where it is pricked by the pin I35 (see Fig. 1) and prevented from sliding off the plug. The plug is then withdrawn while the suction is still on and until the transfer finger above referred to and shown in my application aforesaid enters the jacket and groove I32, whereupon the suction is stopped and the carrier I30 is open to atmosphere.

From the foregoing description taken in connection with the accompanying drawing it is thought the construction, operation and advantages of the invention will be clear to those skilled in the art.

What I claim is:

1. In a machine of the class described; a flexible jacket removing plug comprising a. conical body having a longitudinal groove in its face, a blind bore and at least one duct connecting said bore with said groove, by virtue of which when suction is applied to said blind bore a portion of the jacket will be sucked into said longitudinal groove- 2. In a machine of the class described: a flexible jacket removing plug comprising a conical body having a longitudinal groove in its face, :a blind bore and at least one duct connecting said bore with said groove, and a pointed elementprojecting into said groove for purposes described.

3. In a machine of the class described? a hex. ible jacket removing plug comprising a conical body having a suction chamber within the body,-

there being two longitudinal grooves in the face of said body and ports connecting said suction chamber with one of said grooves for purposes described, the other groove being adapted to receive a transfer finger. s

4, In a machine of the class described; a flexible jacket removing plug comprising a conical body having a suction chamber, there being two longitudinal grooves in the face of said body, said body having at least one port connecting said chamber with one of said grooves, the latter groove having its face provided with a roughened portion.

5. In a machine wherein flexible jackets are removed from a stack of jackets contained in a chute by the action of suction operating through a plug, the improvement which includes: a jacketremoving plug having longitudinal groove, a blind bore and at least one duct connecting said bore with said groove, by virtue of which when suction is applied to said bore While said plug is within a jacket a portion of the jacket will be sucked into said groove.

6. The improvement of claim 5 wherein there is provided mechanical means to prevent the jacket being stripped off the plug while the plugenga'ged jacket is being separated from the others in the stack and While the suction is on.

7. The improvement of claim 5 wherein there is provided mechanical means in said groove to prevent the jacket being stripped off the plug while the plug-engaged jacket is being separated from the others in the stack and while the suction is on, and wherein the plug is provided with a second longitudinal groove constructed to receive a plug-stripping finger.

8. The improvement of claim 5 wherein the plug is provided with a finger-receiving longitudi- I nal groove to receive a plug-stripping finger.

MITCHEL GLASSNER. 

